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| 型號(hào)： | AD5232BRUZ50-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 1/24頁(yè) |
| 文件大小： | 0K |
| 描述： | IC POT DGTL DUAL 256POS 16TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 接片： | 256 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 600 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 2.7 V ~ 5.5 V，±2.25 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 配用： | EVAL-AD5232-10EBZ-ND - BOARD EVALUATION FOR AD5232-10 |
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Nonvolatile Memory,
Dual 256-Position Digital Potentiometer
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2001–2013 Analog Devices, Inc. All rights reserved.
FEATURES
Dual-channel, 256-position resolution
10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance
Nonvolatile memory maintenance of wiper settings
Predefined linear increment/decrement instructions
Predefined ±6 dB step log taper increment/decrement
instructions
SPI-compatible serial interface
Wiper settings and EEMEM readback
3 V to 5 V single-supply operation
±2.5 V dual-supply operation
14 bytes of general-purpose user EEMEM
Permanent memory write protection
100-year typical data retention (TA = 55°C)
APPLICATIONS
Mechanical potentiometer replacement
Instrumentation: gain and offset adjustment
Programmable voltage-to-current conversion
Programmable filters, delays, and time constants
Programmable power supply
Low resolution DAC replacement
Sensor calibration
FUNCTIONAL BLOCK DIAGRAM
RDAC2
RDAC1
REGISTER
EEMEM1
RDAC2
REGISTER
EEMEM2
14 BYTES
USER
EEMEM
RDAC1
ADDR
DECODE
SERIAL
INTERFACE
POWER-ON
RESET
EEMEM
CONTROL
AD5232
VDD
VSS
GND
A1
W1
B1
A2
W2
B2
RDY
WP
PR
SDO
SDI
CLK
CS
02
61
8-
0
01
Figure 1.
GENERAL DESCRIPTION
The AD5232 device provides a nonvolatile, dual-channel,
digitally controlled variable resistor (VR) with 256-position
resolution. This device performs the same electronic adjustment
function as a mechanical potentiometer with enhanced resolution,
solid state reliability, and superior low temperature coefficient
performance. The versatile programming of the AD5232, per-
ormed via a microcontroller, allows multiple modes of operation
and adjustment.
In the direct program mode, a predetermined setting of the RDAC
registers (RDAC1 and RDAC2) can be loaded directly from the
microcontroller. Another important mode of operation allows
the RDACx register to be refreshed with the setting previously
stored in the corresponding EEMEM register (EEMEM1 and
EEMEM2). When changes are made to the RDACx register to
establish a new wiper position, the value of the setting can be
saved into the EEMEMx register by executing an EEMEM save
operation. After the settings are saved in the EEMEMx register,
these values are automatically transferred to the RDACx register
to set the wiper position at system power-on. Such operation is
enabled by the internal preset strobe. The preset strobe can also
be accessed externally.
All internal register contents can be read via the serial data
output (SDO). This includes the RDAC1 and RDAC2 registers,
the corresponding nonvolatile EEMEM1 and EEMEM2 registers,
and the 14 spare USER EEMEM registers that are available for
constant storage.
The basic mode of adjustment is the increment and decrement
command instructions that control the wiper position setting
register (RDACx). An internal scratch pad RDACx register can
be moved up or down one step of the nominal resistance between
Terminal A and Terminal B. This step adjustment linearly changes
the wiper to Terminal B resistance (RWB) by one position segment
of the device’s end-to-end resistance (RAB). For exponential/
logarithmic changes in wiper setting, a left/right shift command
instruction adjusts the levels in ±6 dB steps, which can be useful
for audio and light alarm applications.
The AD5232 is available in a thin, 16-lead TSSOP package.
All parts are guaranteed to operate over the extended industrial
temperature range of 40°C to +85°C. An evaluation board, the
EVAL-AD5232-10EBZ, is available.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5232EVAL10 | 制造商:Analog Devices 功能描述:Evaluation Board For Dual Non-Volatile Memory Digital Potentiometer 制造商:Analog Devices 功能描述:DUAL 8BITEEMEM EVAL BOARD - Bulk |
| AD5232EVAL100 | 制造商:Analog Devices 功能描述:DUAL 8BITEEMEM EVAL BOARD - Bulk |
| AD5232EVAL50 | 制造商:Analog Devices 功能描述:DUAL 8BITEEMEM EVAL BOARD - Bulk |
| AD5233 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Nonvolatile Memory Digital Potentiometers |
| AD5233BRU10 | 制造商:Analog Devices 功能描述:Digital Potentiometer 64POS 10KOhm Quad 24-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:QUAD 6BIT EEMEM DIG POT - Bulk 制造商:Analog Devices 功能描述:SEMICONDUCTOR ((NW)) |
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